<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
	<form action="Login">
	<table>
	<tr><td>
		<c:set var="n" value="${sessionScope.nguoidung }"/>
		welcome <c:out value="${n.username }" /></td>
		
		<td>
		<input type="hidden" name="action" value="thoat">
		<input type="submit" value="Thoát"></td>
	</table>
	</form>

</body>
</html>